this does the same thing as if you were to run Enable-PSRemoting from powershell. I was under the impression that you had to have powershell on both computers but I have been experimenting and I am not sure that that is true.

Enable-PSRemoting cmdlet does more than "winrm quickconfig". The Set-WSManQuickConfig cmdlet is similar to "winrm quickconfig". As you can see from this excerpt taken from Enable-PSRemoting help topic, Set-WSManQuickConfig runs behind the scenes when you execute Enable-PSRemoting: